Product Data Sheet Hempadur Avantguard 550 Product characteristics Description Hempadur Avantguard 550 is an activated, zinc epoxy primer in compliance with the requirements of Level 3, type II in SSPC Paint20, 2019. Hempadur Avantguard 550 functions as a zinc-rich epoxy featuring a higher mechanical strength. The product is in full compliance with ASTM D520 type II and EU Directive 2004/42/EC, the Paints Directive on the limitation of volatile organic compounds: subcategory j. Recommended use Hempadur Avantguard 550 is recommended as a versatile primer for long-term protection of steel in severely corrosive environments. Service temperature: - Maximum, dry exposure only: 160°C [320°F]. Certificates / Approvals - Meets requirements to ISO 12944 when used as part of a predefined paint system. Part 6 C5 Very High. - Complies with the European Fire Standard EN 13501-1, reaction to fire classification, when used as part of a predefined paint system. B-s1, d0. Features - Reduces the effect of corrosion and provides very good galvanic protection. - Fast drying primer with short minimum overcoating intervals. - Excellent mechanical strength, also in cyclic temperatures, with improved tolerance to high film thickness through high flexibility and self-healing effect. - Superior tolerance to high relative humidity during application. - Cures down to -10°C [14°F]. Product safety VOC content mixed product Value 5% thinning, by volume Limit value, phase II (2010)ª EU 325 g/L [2.71 lb/US gal] 350g/L 500 g/L [4.17 lb/US gal] US (coatings) 325 g/L [2.71 lb/US gal] US (regulatory) 325 g/L [2.71 lb/US gal] China 325 g/L [2.71 lb/US gal] Legislation According to specific legislation, see details in the Explanatory Notes available at Hempel website, hempel.com or at your local Hempel website. ªEU Directive 2004/42/CE. Handling Handle with care. Before and during use, observe safety labels on packaging and paint containers and follow all local and national safety regulations. Always consult Hempel’s Safety Data Sheet for this product along with the Product Data Sheet. For professional use only. Product data Product code 1734G Product components Base 1734U Curing Agent 97043 Standard shade / code Grey 19840 Flash point 29°C [84°F] Gloss Flat Volume solids 65 ± 2% Specific gravity 1.9 kg/L [16 lb/US gal] Issued by Hempel A/S - October 2022 1/4 Product Data Sheet Hempadur Avantguard 550 Reference dry film thickness 60 micron [2.4 mils] Application method Tool Surface preparation Thinning max vol. Application parameters 5% Nozzle pressure: 220 bar [3200 psi] Nozzle orifice: 0.017-0.021" Airless spray Cleanliness - Remove oil, grease and other contaminants by suitable detergent cleaning. - Remove salts, detergents and other contaminants by high pressure fresh water cleaning. New build: - Abrasive blasting to min. Sa 2½ (ISO 8501-1) / SP 10 (SSPC). - Remove dust, blast media and loose materials. Roughness - Surface profile Medium (G) (ISO 8503-2). Consult Hempel's separate Surface Preparation Guidelines for more details. If brush or roller application is used, more coats will be necessary to achieve the specified dry film thickness. Spray data are indicative and subject to adjustment. Pressure is for a material temperature of 20°C [68°F]. Film thickness Specification range Low High Recommended Dry film thickness 40 micron [1.6 mils] 100 micron [3.9 mils] 60 micron [2.4 mils] Wet film thickness 60 micron [2.5 mils] 150 micron [6 mils] 90 micron [3.5 mils] 16 m²/L [650 sq ft/US gal] 6.5 m²/L [260 sq ft/US gal] 11 m²/L [450 sq ft/US gal] Theoretical spreading rate Overthickness should be closely controlled and never locally exceed 200 micron [7.9 mils] DFT. On irregular surfaces it is recommended to employ special care in avoiding over application. Application Mixing ratio Base 1734U : Curing Agent 97043 (4 : 1 by volume) Products containing floating or settling particles/pigments need to be continuosly stirred during application. This is especially important in case of heavy thinning. Thinner Hempel's Thinner 08450 Application conditions - Temperature of product must be above 15°C [59°F] during application. - To avoid condensation, apply on a clean and dry surface with a temperature that is at least 3°C [5°F] above the dew point. - Surface temperature must be above -10°C [14°F] during application and curing. - Surface temperature must be below 40°C [104°F] during application and curing. Relative Humidity: - Relative humidity must be below 95% during curing. - Relative humidity must be below 95% during application. Cleaner Hempel's Tool Cleaner 99610 Pot life Product temperature Pot life 0°C [32°F] 20°C [68°F] 40°C [104°F] 6 hours 3 hours 1 hour Issued by Hempel A/S - October 2022 2/4 Product Data Sheet Hempadur Avantguard 550 Drying and overcoating Other remarks - Hempel’s Specification supersedes any recommendations given in the Product Data Sheets. Product compatibility - Previous coat: None. - Subsequent coat: According to Hempel’s Specification. Storage Drying time Shelf life Surface temperature -10°C [14°F] 0°C [32°F] 20°C [68°F] 40°C [104°F] Touch dry min 70 40 15 5 Hard dry hours 6 4 1½ ½ Determined for dry film thickness 60 micron [2.4 mils] at standard conditions, see Hempel’s Explanatory Notes for details. Overcoating Hempel’s specification supersedes any guidelines indicated in the overcoating table -10°C [14°F] Quality name 0°C [32°F] 20°C [68°F] 40°C [104°F] Ambient temperature 25°C [77°F] 35°C [95°F] Base 12 months 9 months Curing Agent 36 months 24 months Shelf life from date of production, when stored in original, unopened containers. Thereafter, the product quality must be re-inspected. Always check the best before date or expiry date on the label. Storage conditions - Product must be stored according to local legislation, at maximum 40°C [104°F], without direct sunlight and protected from rain and snow. Atmospheric medium Hempaprime Multi 500 Min Max 3h Ext* 90 min Ext 45 min Ext 25 min Ext Hempathane HS 55610 Min Max 3h 56 d 90 min 42 d 45 min 14 d 25 min 3½ d Atmospheric severe Hempaprime Multi 500 Min Max 3h 90 d 90 min 90 d 45 min 30 d 25 min 7d Hempathane HS 55610 Min Max 3h 20 d 90 min 15 d 45 min 5d 25 min 28 h Overcoating times are indicative for products of the same generic chemistry. Consult Hempel’s specification for more information. Drying conditions - To obtain the drying time stated, it is important to maintain sufficient ventilation during application, drying and curing. Overcoating details - If the maximum overcoating interval is exceeded, roughening of the surface is necessary to ensure intercoat adhesion. - Remove zinc salts or other contamination before overcoating. - The surface must be dry and clean prior to application. Issued by Hempel A/S - October 2022 3/4 Product Data Sheet Hempadur Avantguard 550 Additional documents Additional information is available at the Hempel website hempel.com or at your local Hempel website: - Explanatory Notes explaining the fields in this Product Data Sheet. Surface Preparation Guidelines. Application Guidelines for different application methods. General Application Guidelines This Product Data Sheet (“PDS”) relates to the supplied product (“Product”) and is subject to updating from time-to-time. Accordingly, the buyer/applicator should have regard to the PDS supplied together with the relevant batch of the Product (and not an earlier version). In addition to the PDS, the buyer/applicator may receive some or all of the following specifications, statements and/or guidelines as listed below or as are available from the Hempel website under ‘Products’ at www.hempel.com (the “Additional documents”): No. Document description Location/comments 1. Technical Statement One-off specific advice provided on request for specific projects 2. Specification Only issued for specific projects 3. PDS This document 4. Explanatory Notes to the PDS Available at www.hempel.com and contain relevant information about the Product testing parameters 5. Application Instruction Where available, at www.hempel.com 6. Generic technical guidelines (e.g. on application and surface preparation) Where available, at www.hempel.com In the event of a conflict of information between the PDS and the Additional documents, the order of priority of information shall be in the order as set out above. In such event you should also contact your representative at Hempel for clarification. Furthermore, the buyer/applicator must have full regard to the relevant Safety Data Sheet provided with each Product and which can also be downloaded from www.hempel.com. Hempel shall not be liable for defects where the application of the Product has not been made fully in accordance with the recommendations and requirements set out in the relevant PDS and the Additional Documents. The information and terms of this disclaimer apply to this PDS, the Additional documents and any other documents supplied by Hempel in respect of the Product. In addition, the Product is supplied and all technical assistance is given subject to Hempel’s General Conditions of Sale, Delivery and Service, unless otherwise expressly agreed in writing. hempel.com Issued by Hempel A/S - October 2022 4/4
